package main

import "fmt"

func main() {
    var b int = 15
    var a int

    numbers := [6]int{1, 2, 3, 5}

    /* for 循环 */
    for a := 0; a < 10; a++ {
        fmt.Printf("a 的值为: %d\n", a)
    }

    for a < b {
        a++
        fmt.Printf("a 的值为: %d\n", a)
        }

    for i,x:= range numbers {
        fmt.Printf("第 %d 位 x 的值 = %d\n", i,x)
    }  
}